如何“在Finder中显示”或“在资源管理器中显示”与Qt [英] How to "Reveal in Finder" or "Show in Explorer" with Qt
问题描述
是否可以在Windows资源管理器/ OS X Finder中打开文件夹，然后选择/突出显示该文件夹中的一个文件，并以跨平台方式执行？现在，我做了像
QDesktopServices :: openUrl（QUrl :: fromLocalFile（path））;
其中 path 是文件夹的完整路径我想打开。显然，这将打开文件夹，我必须跟踪我需要手动的文件。这是一个有点问题，当该文件夹中有成千上万的文件。
如果我把它作为该文件夹中的特定文件的路径，那么该文件是开放的与默认应用程序的mime类型，这不是我需要的。相反，我需要相当于在Finder中显示或在资源管理器中显示的功能。
Qt Creator 具有此功能，可将其复制：
void FolderNavigationWidget :: showInGraphicalShell（QWidget * parent，const QString& pathIn）
{
// Mac文件夹或文件。
#if defined（Q_OS_WIN）
const QString explorer = Environment :: systemEnvironment（）。searchInPath（QLatin1String（explorer.exe））;
if（explorer.isEmpty（））{
QMessageBox :: warning（parent，
tr（Launching Windows Explorer failed），
tr（Could not find explorer。 exe在启动Windows资源管理器的路径。
return;
}
QString param;
if（！QFileInfo（pathIn）.isDir（））
param = QLatin1String（/ select，）;
param + = QDir :: toNativeSeparators（pathIn）;
QString command = explorer ++ param;
QProcess :: startDetached（command）;
#elif defined（Q_OS_MAC）
Q_UNUSED（parent）
QStringList scriptArgs;
scriptArgs<< QLatin1String（ - e）
<< QString :: fromLatin1（告诉应用程序\Finder \以显示POSIX文件\％1 \）
.arg（pathIn）;
QProcess :: execute（QLatin1String（/ usr / bin / osascript），scriptArgs）;
scriptArgs.clear（）;
scriptArgs<< QLatin1String（ - e）
<< QLatin1String（tell application \Finder\activate）;
QProcess :: execute（/ usr / bin / osascript，scriptArgs）;
#else
//我们不能在这里选择一个文件，因为没有文件浏览器真正支持它...
const QFileInfo fileInfo（pathIn）;
const QString folder = fileInfo.absoluteFilePath（）;
const QString app = Utils :: UnixUtils :: fileBrowser（Core :: ICore :: instance（） - > settings（））;
QProcess browserProc;
const QString browserArgs = Utils :: UnixUtils :: substituteFileBrowserParameters（app，folder）;
if（debug）
qDebug（）<< browserArgs;
bool success = browserProc.startDetached（browserArgs）;
const QString error = QString :: fromLocal8Bit（browserProc.readAllStandardError（））;
success = success&&& error.isEmpty（）;
if（！success）
showGraphicalShellError（parent，app，error）;
#endif
}
另一个相关的博客文章我没有尝试过，所以我不能评论），是这。 p>
编辑：
当pathIn包含Windows上的空格时，原始代码中有一个错误。如果参数包含空格， QProcess :: startDetached 将自动引用参数。但是，Windows资源管理器无法识别包含在引号中的参数，而是将打开默认位置。在Windows命令行中自己尝试一下：
echo。 > C：\ a file with space.txt
::以下工作
C：\Windows \explorer.exe / select，C：\a文件与space.txt
::以下不工作
C：\Windows\explorer.exe/ select，C：\a文件与space.txt
因此，
QProcess :: startDetached（explorer， QStringList（param））;
更改为
QString command = explorer ++ param;
QProcess :: startDetached（command）;
Is it possible to open a folder in Windows Explorer/OS X Finder and then select/highlight one file in that folder, and do it in a cross platform way? Right now, I do something like
QDesktopServices::openUrl( QUrl::fromLocalFile( path ) );
where path is a full path to folder I want to open. Obviously, this will just open the folder, and I'll have to track down the file I need manually. This is a bit of a problem when there are thousands of files in that folder.
If I make it a path to specific file in that folder, then that file is open with default application for that mime type, and that is not what I need. Instead, I need the functionality equivalent to "Reveal in Finder" or "Show in Explorer".
Qt Creator has this functionality, it's trivial to copy it:
void FolderNavigationWidget::showInGraphicalShell(QWidget *parent, const QString &pathIn)
{
// Mac, Windows support folder or file.
#if defined(Q_OS_WIN)
const QString explorer = Environment::systemEnvironment().searchInPath(QLatin1String("explorer.exe"));
if (explorer.isEmpty()) {
QMessageBox::warning(parent,
tr("Launching Windows Explorer failed"),
tr("Could not find explorer.exe in path to launch Windows Explorer."));
return;
}
QString param;
if (!QFileInfo(pathIn).isDir())
param = QLatin1String("/select,");
param += QDir::toNativeSeparators(pathIn);
QString command = explorer + " " + param;
QProcess::startDetached(command);
#elif defined(Q_OS_MAC)
Q_UNUSED(parent)
QStringList scriptArgs;
scriptArgs << QLatin1String("-e")
<< QString::fromLatin1("tell application \"Finder\" to reveal POSIX file \"%1\"")
.arg(pathIn);
QProcess::execute(QLatin1String("/usr/bin/osascript"), scriptArgs);
scriptArgs.clear();
scriptArgs << QLatin1String("-e")
<< QLatin1String("tell application \"Finder\" to activate");
QProcess::execute("/usr/bin/osascript", scriptArgs);
#else
// we cannot select a file here, because no file browser really supports it...
const QFileInfo fileInfo(pathIn);
const QString folder = fileInfo.absoluteFilePath();
const QString app = Utils::UnixUtils::fileBrowser(Core::ICore::instance()->settings());
QProcess browserProc;
const QString browserArgs = Utils::UnixUtils::substituteFileBrowserParameters(app, folder);
if (debug)
qDebug() << browserArgs;
bool success = browserProc.startDetached(browserArgs);
const QString error = QString::fromLocal8Bit(browserProc.readAllStandardError());
success = success && error.isEmpty();
if (!success)
showGraphicalShellError(parent, app, error);
#endif
}
Another, related blog post (with simpler code, I haven't tried it so I can't comment), is this.
Edit:
There is a bug in the original code when pathIn contains spaces on Windows. QProcess::startDetached will automatically quote a parameter if it contains spaces. However, Windows Explorer will not recognize a parameter wrapped in quotes, and will open the default location instead. Try it yourself in the Windows command line:
echo. > "C:\a file with space.txt"
:: The following works
C:\Windows\explorer.exe /select,C:\a file with space.txt
:: The following does not work
C:\Windows\explorer.exe "/select,C:\a file with space.txt"
Thus,
QProcess::startDetached(explorer, QStringList(param));
is changed to
QString command = explorer + " " + param;
QProcess::startDetached(command);
这篇关于如何“在Finder中显示”或“在资源管理器中显示”与Qt的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
